Specialized surplus warehouses (e.g., Radwell, EU Automation, or Industrial-Stock) occasionally hold unopened GDP units.
As industries migrate to Industry 4.0, the GDP E239 Grace Link has found a new lease on life. Instead of replacing entire GDP-based control systems, engineers now deploy the E239 as an edge aggregator. The unit’s Ethernet port can be configured to push JSON payloads over MQTT to a cloud platform (e.g., AWS IoT Core or Azure IoT Hub), while simultaneously maintaining the legacy GDP bus for real-time control. gdp e239 grace link
This hybrid approach gives plant managers the best of both worlds: deterministic control on the factory floor and cloud analytics at the enterprise level. To enable MQTT: Specialized surplus warehouses (e
For greenfield installations, no. The newer G500 gateway offers faster failover (<20 ms) and native OPC UA support. However, for brownfield systems—existing factories, utilities, and infrastructure that have run reliably for a decade or more—the GDP E239 Grace Link remains a vital component. Its deterministic behavior, simple DIP-switch configuration, and proven track record make it a favorite among maintenance teams who value predictability over feature bloat. The unit’s Ethernet port can be configured to
If your facility still operates with GDP-native controllers (e.g., the old GDP–3060 or GDP–4K series), the Grace Link is not just useful—it is indispensable for any redundant architecture.